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Data.Common.ttinclude
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<#@ assembly name="System.Core" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.Data" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System" #>
<#@ import namespace="System.Collections" #>
<#@ import namespace="System.Configuration" #>
<#@ import namespace="System.Data.Common" #>
<#@ import namespace="System.Reflection" #>
<#+
//
// Data.Common.DbSchema - http://dbschema.codeplex.com
//
// The contents of this file are subject to the New BSD
// License (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of
// the License at http://www.opensource.org/licenses/bsd-license.php
//
// Software distributed under the License is distributed on an
// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
// implied. See the License for the specific language governing
// rights and limitations under the License.
//
// Data.Common.DbTable
public class DbTable
{
public DbTable() { }
public DbTable(DataRow TableRow)
{
if (TableRow.Table.Columns.Contains("TABLE_CATALOG"))
if (TableRow["TABLE_CATALOG"] != DBNull.Value)
this.TableCatalog = TableRow["TABLE_CATALOG"].ToString();
if (TableRow.Table.Columns.Contains("TABLE_SCHEMA"))
if (TableRow["TABLE_SCHEMA"] != DBNull.Value)
this.TableSchema = TableRow["TABLE_SCHEMA"].ToString();
this.TableName = TableRow["TABLE_NAME"].ToString();
this.TableType = TableRow["TABLE_TYPE"].ToString();
}
public string TableCatalog { get; set; }
public string TableSchema { get; set; }
public string TableName { get; set; }
public string TableType { get; set; }
}
// Data.Common.DbColumn
public class DbColumn
{
public DbColumn() { }
public DbColumn(DataRow ColumnRow)
{
this.AllowDBNull = (bool)ColumnRow["AllowDBNull"];
if (ColumnRow.Table.Columns.Contains("BaseCatalogName"))
if (ColumnRow["BaseCatalogName"] != DBNull.Value)
this.BaseCatalogName = ColumnRow["BaseCatalogName"].ToString();
this.BaseColumnName = ColumnRow["BaseColumnName"].ToString();
if (ColumnRow["BaseSchemaName"] != DBNull.Value)
this.BaseSchemaName = ColumnRow["BaseSchemaName"].ToString();
this.BaseTableName = ColumnRow["BaseTableName"].ToString();
this.ColumnName = ColumnRow["ColumnName"].ToString();
this.ColumnOrdinal = (int)ColumnRow["ColumnOrdinal"];
this.ColumnSize = (int)ColumnRow["ColumnSize"];
this.DataType = ColumnRow["DataType"].ToString();
if (ColumnRow.Table.Columns.Contains("IsAutoIncrement"))
this.IsAutoIncrement = (bool)ColumnRow["IsAutoIncrement"];
this.IsKey = (bool)ColumnRow["IsKey"];
this.IsLong = (bool)ColumnRow["IsLong"];
if (ColumnRow.Table.Columns.Contains("IsReadOnly"))
this.IsReadOnly = (bool)ColumnRow["IsReadOnly"];
if (ColumnRow.Table.Columns.Contains("IsRowVersion"))
this.IsRowVersion = (bool)ColumnRow["IsRowVersion"];
this.IsUnique = (bool)ColumnRow["IsUnique"];
this.NumericPrecision = Convert.ToInt32(ColumnRow["NumericPrecision"]);
this.NumericScale = Convert.ToInt32(ColumnRow["NumericScale"]);
if (ColumnRow.Table.Columns.Contains("ProviderType"))
this.ProviderType = ColumnRow["ProviderType"].ToString();
}
public bool AllowDBNull { get; set; }
public string BaseCatalogName { get; set; }
public string BaseColumnName { get; set; }
public string BaseSchemaName { get; set; }
public string BaseTableName { get; set; }
public string ColumnName { get; set; }
public int ColumnOrdinal { get; set; }
public int ColumnSize { get; set; }
public string DataType { get; set; }
public bool IsAutoIncrement { get; set; }
public bool IsKey { get; set; }
public bool IsLong { get; set; }
public bool IsReadOnly { get; set; }
public bool IsRowVersion { get; set; }
public bool IsUnique { get; set; }
public int NumericPrecision { get; set; }
public int NumericScale { get; set; }
public string ProviderType { get; set; }
}
// Data.Common.DbRelation
public class DbRelation
{
public DbRelation() { }
public DbRelation(DataRow RelationRow)
{
if (RelationRow["PK_TABLE_CATALOG"] != DBNull.Value)
this.PkTableCatalog = RelationRow["PK_TABLE_CATALOG"].ToString();
if (RelationRow["PK_TABLE_SCHEMA"] != DBNull.Value)
this.PkTableSchema = RelationRow["PK_TABLE_SCHEMA"].ToString();
this.PkTableName = RelationRow["PK_TABLE_NAME"].ToString();
this.PkColumnName = RelationRow["PK_COLUMN_NAME"].ToString();
if (RelationRow["FK_TABLE_CATALOG"] != DBNull.Value)
this.FkTableCatalog = RelationRow["FK_TABLE_CATALOG"].ToString();
if (RelationRow["FK_TABLE_SCHEMA"] != DBNull.Value)
this.FkTableSchema = RelationRow["FK_TABLE_SCHEMA"].ToString();
this.FkTableName = RelationRow["FK_TABLE_NAME"].ToString();
this.FkColumnName = RelationRow["FK_COLUMN_NAME"].ToString();
}
public string PkTableCatalog { get; set; }
public string PkTableSchema { get; set; }
public string PkTableName { get; set; }
public string PkColumnName { get; set; }
public string FkTableCatalog { get; set; }
public string FkTableSchema { get; set; }
public string FkTableName { get; set; }
public string FkColumnName { get; set; }
}
// Data.Common.DbSchema
public class DbSchema
{
private string _ConnectionName;
private string _ConnectionString;
private string _ProviderName;
private DbSchemaProvider _Provider;
private Dictionary<string, DataTable> Cache = new Dictionary<string, DataTable>();
private ArrayList dictionaryTablesManyToMany = new ArrayList();
private ArrayList dictionaryTablesOneToOne = new ArrayList();
#region ' Properties '
public string ConnectionName
{
get { return _ConnectionName; }
}
public string ConnectionString
{
get { return _ConnectionString; }
}
public string ProviderName
{
get { return _ProviderName; }
}
#endregion
#region ' Constractors '
public DbSchema() :
this("LocalSqlServer")
{ }
public DbSchema(string ConnectionName) :
this(ConnectionName, System.Configuration.ConfigurationManager.ConnectionStrings[ConnectionName].ConnectionString, System.Configuration.ConfigurationManager.ConnectionStrings[ConnectionName].ProviderName)
{ }
public DbSchema(string ConnectionString, string ProviderName) :
this(null, ConnectionString, ProviderName)
{ }
private DbSchema(string ConnectionName, string ConnectionString, string ProviderName)
{
if (!string.IsNullOrEmpty(ConnectionString))
_ConnectionName = ConnectionName;
_ConnectionString = ConnectionString;
_ProviderName = ProviderName;
_Provider = GetSchemaProvider(_ConnectionString, _ProviderName);
DiscoverTableRelations();
}
#endregion
#region ' Methods '
#region ' Tables and Views '
private DataTable GetSchemaTables()
{
string CacheKey = "SchemaTables";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable tbl = _Provider.GetSchemaTables();
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTables()
{
string CacheKey = "Tables";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable schemaTables = GetSchemaTables();
DataTable tbl = new DataTable("Tables");
if (schemaTables.Rows.Count > 0)
{
string WhereClause = "TABLE_TYPE = 'TABLE' OR TABLE_TYPE = 'BASE TABLE'";
tbl = schemaTables.Clone();
foreach (DataRow tblRow in schemaTables.Select(WhereClause))
{
tbl.ImportRow(tblRow);
}
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetViews()
{
string CacheKey = "Views";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable schemaTables = GetSchemaTables();
DataTable tbl = new DataTable("Views");
if (schemaTables.Rows.Count > 0)
{
string WhereClause = "TABLE_TYPE = 'VIEW'";
tbl = schemaTables.Clone();
foreach (DataRow tblRow in schemaTables.Select(WhereClause))
{
tbl.ImportRow(tblRow);
}
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTablesAndViews()
{
string CacheKey = "TablesAndViews";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable schemaTables = GetSchemaTables();
DataTable tbl = new DataTable("TablesAndViews");
if (schemaTables.Rows.Count > 0)
{
string WhereClause = "TABLE_TYPE = 'TABLE' OR TABLE_TYPE = 'BASE TABLE' OR TABLE_TYPE = 'VIEW'";
tbl = schemaTables.Clone();
foreach (DataRow tblRow in schemaTables.Select(WhereClause))
{
tbl.ImportRow(tblRow);
}
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTablesLogical()
{
string CacheKey = "LogicalTables";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DiscoverTableRelations();
return GetTablesLogical();
}
public DataTable GetTablesManyToMany()
{
string CacheKey = "ManyToManyTables";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DiscoverTableRelations();
return GetTablesManyToMany();
}
private void DiscoverTableRelations()
{
DataTable schemaTables = GetTables();
DataTable tblManyToMany = new DataTable("ManyToManyTables");
tblManyToMany = schemaTables.Clone();
DataTable tblLogical = new DataTable("LogicalTables");
tblLogical = schemaTables.Clone();
dictionaryTablesManyToMany.Clear();
foreach (DataRow tableRow in schemaTables.Rows)
{
string tableSchema = null;
if (tableRow["TABLE_SCHEMA"] != DBNull.Value)
tableSchema = tableRow["TABLE_SCHEMA"].ToString();
string tableName = tableRow["TABLE_NAME"].ToString();
// Discover Many-to-Many relations
int foreignKeyRelationsCount = GetTableRelationsByForeignKey(tableSchema, tableName).Rows.Count;
int tableColumnsCount = GetTableColumns(tableSchema, tableName).Rows.Count;
int primaryKeyColumnsCount = GetTablePrimaryKeyColumns(tableSchema, tableName).Rows.Count;
if ((foreignKeyRelationsCount == tableColumnsCount) || (primaryKeyColumnsCount + foreignKeyRelationsCount == tableColumnsCount))
{
dictionaryTablesManyToMany.Add(_Provider.QualifiedTableName(tableSchema, tableName));
tblManyToMany.ImportRow(tableRow);
}
else
tblLogical.ImportRow(tableRow);
}
Cache.Add("ManyToManyTables", tblManyToMany);
Cache.Add("LogicalTables", tblLogical);
}
#endregion
#region ' Columns and Primary Keys '
public DataTable GetTableColumns(string tableSchema, string tableName)
{
string CacheKey = "Columns:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable tbl = new DataTable();
DataTable tableColumns = _Provider.GetTableColumns(tableSchema, tableName);
if (tableColumns.Columns.Contains("IsHidden"))
{
if (tableColumns.Select("IsHidden = 1").Length > 0)
{
tbl = tableColumns.Clone();
foreach (DataRow columnRow in tableColumns.Select("IsHidden = 0 OR IsHidden IS NULL"))
{
tbl.ImportRow(columnRow);
}
}
else
tbl = tableColumns;
}
else
tbl = tableColumns;
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTablePrimaryKeyColumns(string tableSchema, string tableName)
{
DataTable TableColumns = GetTableColumns(tableSchema, tableName);
string WhereClause = "IsKey = true";
DataTable tbl = TableColumns.Clone();
foreach (DataRow primaryKeyRow in TableColumns.Select(WhereClause))
tbl.ImportRow(primaryKeyRow);
return tbl;
}
public DataTable GetTableFields(string tableSchema, string tableName)
{
List<string> filteredcolumns = new List<string>();
foreach (DataRow primarykey in GetTablePrimaryKeyColumns(tableSchema, tableName).Rows)
{
string columnname = "'" + primarykey["ColumnName"].ToString() + "'";
if (!filteredcolumns.Contains(columnname))
filteredcolumns.Add(columnname);
}
foreach (DataRow pkRelationRow in GetTableRelationsByPrimaryKey(tableSchema, tableName).Rows)
{
string columnname = "'" + pkRelationRow["PK_COLUMN_NAME"].ToString() + "'";
if (!filteredcolumns.Contains(columnname))
filteredcolumns.Add(columnname);
}
foreach (DataRow fkRelationRow in GetTableRelationsByForeignKey(tableSchema, tableName).Rows)
{
string columnname = "'" + fkRelationRow["FK_COLUMN_NAME"].ToString() + "'";
if (!filteredcolumns.Contains(columnname))
filteredcolumns.Add(columnname);
}
string WhereClause = "ColumnName NOT IN ( " + string.Join(", ", filteredcolumns.ToArray()) + " )";
DataTable TableColumns = GetTableColumns(tableSchema, tableName);
DataTable tbl = TableColumns.Clone();
foreach (DataRow columnRow in TableColumns.Select(WhereClause))
{
tbl.ImportRow(columnRow);
}
return tbl;
}
#endregion
#region ' Relations '
private DataTable GetSchemaConstraints()
{
string CacheKey = "Constraints";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable tbl = _Provider.GetConstraints();
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsOneToMany(string tableSchema, string tableName)
{
string CacheKey = "OneToManyRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable otmRelations = GetTableRelationsByPrimaryKey(tableSchema, tableName);
DataTable tbl = otmRelations.Clone();
foreach (DataRow relationRow in otmRelations.Rows)
{
string fkTableSchema = null;
if (relationRow["FK_TABLE_SCHEMA"] != DBNull.Value)
fkTableSchema = relationRow["FK_TABLE_SCHEMA"].ToString();
string fkTableName = relationRow["FK_TABLE_NAME"].ToString();
string fkColumnName = relationRow["FK_COLUMN_NAME"].ToString();
DataTable fkTablePrimaryKeys = GetTablePrimaryKeyColumns(fkTableSchema, fkTableName);
bool fkColumnIsPrimaryKey = false;
foreach (DataRow primarykeyRow in fkTablePrimaryKeys.Rows)
{
string pkColumnName = primarykeyRow["ColumnName"].ToString();
if (fkColumnName.ToLower() == pkColumnName.ToLower())
{
fkColumnIsPrimaryKey = true;
break;
}
}
string tableNameHash = _Provider.QualifiedTableName(fkTableSchema, fkTableName);
if (!dictionaryTablesManyToMany.Contains(tableNameHash) && !fkColumnIsPrimaryKey)
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsManyToOne(string tableSchema, string tableName)
{
string CacheKey = "ManyToOneRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable mtoRelations = GetTableRelationsByForeignKey(tableSchema, tableName);
DataTable tbl = mtoRelations.Clone();
foreach (DataRow relationRow in mtoRelations.Rows)
{
string pkTableSchema = null;
if (relationRow["PK_TABLE_SCHEMA"] != DBNull.Value)
pkTableSchema = relationRow["PK_TABLE_SCHEMA"].ToString();
string pkTableName = relationRow["PK_TABLE_NAME"].ToString();
string tableNameHash = _Provider.QualifiedTableName(pkTableSchema, pkTableName);
if (!dictionaryTablesManyToMany.Contains(tableNameHash))
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsManyToMany(string tableSchema, string tableName)
{
string CacheKey = "ManyToManyRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable mtmRelations = GetTableRelationsByPrimaryKey(tableSchema, tableName);
DataTable tbl = mtmRelations.Clone();
foreach (DataRow relationRow in mtmRelations.Rows)
{
string fkTableSchema = null;
string fkTableName = null;
if (relationRow["FK_TABLE_SCHEMA"] != DBNull.Value)
fkTableSchema = relationRow["FK_TABLE_SCHEMA"].ToString();
fkTableName = relationRow["FK_TABLE_NAME"].ToString();
string tableNameHash = _Provider.QualifiedTableName(fkTableSchema, fkTableName);
if (dictionaryTablesManyToMany.Contains(tableNameHash))
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsOneToOne(string tableSchema, string tableName)
{
string CacheKey = "OneToOneRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable pkRelations = GetTableRelationsByPrimaryKey(tableSchema, tableName);
DataTable tbl = pkRelations.Clone();
foreach (DataRow relationRow in pkRelations.Rows)
{
string fkTableSchema = null;
if (relationRow["FK_TABLE_SCHEMA"] != DBNull.Value)
fkTableSchema = relationRow["FK_TABLE_SCHEMA"].ToString();
string fkTableName = relationRow["FK_TABLE_NAME"].ToString();
string fkColumnName = relationRow["FK_COLUMN_NAME"].ToString();
DataTable fkTablePrimaryKeys = GetTablePrimaryKeyColumns(fkTableSchema, fkTableName);
bool fkColumnIsPrimaryKey = false;
foreach (DataRow primarykeyRow in fkTablePrimaryKeys.Rows)
{
string pkColumnName = primarykeyRow["ColumnName"].ToString();
if (fkColumnName.ToLower() == pkColumnName.ToLower())
{
fkColumnIsPrimaryKey = true;
break;
}
}
string tableNameHash = _Provider.QualifiedTableName(fkTableSchema, fkTableName);
if (!dictionaryTablesManyToMany.Contains(tableNameHash) && fkColumnIsPrimaryKey)
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsByPrimaryKey(string tableSchema, string tableName)
{
string CacheKey = "PrimaryKeyRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
string WhereClause;
if (!string.IsNullOrEmpty(tableSchema))
WhereClause = string.Format("PK_TABLE_SCHEMA = '{0}' AND PK_TABLE_NAME = '{1}'", tableSchema, tableName);
else
WhereClause = string.Format("PK_TABLE_NAME = '{0}'", tableName);
DataTable relations = GetSchemaConstraints();
DataRow[] pkRelations = (DataRow[])relations.Select(WhereClause);
DataTable tbl = relations.Clone();
foreach (DataRow relationRow in pkRelations)
{
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetTableRelationsByForeignKey(string tableSchema, string tableName)
{
string CacheKey = "ForeignKeyRelations:" + _Provider.QualifiedTableName(tableSchema, tableName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
string WhereClause;
if (!string.IsNullOrEmpty(tableSchema))
WhereClause = string.Format("FK_TABLE_SCHEMA = '{0}' AND FK_TABLE_NAME = '{1}'", tableSchema, tableName);
else
WhereClause = string.Format("FK_TABLE_NAME = '{0}'", tableName);
DataTable relations = GetSchemaConstraints();
DataRow[] fkRelations = (DataRow[])relations.Select(WhereClause);
DataTable tbl = relations.Clone();
foreach (DataRow relationRow in fkRelations)
{
tbl.ImportRow(relationRow);
}
Cache.Add(CacheKey, tbl);
return tbl;
}
#endregion
#region ' Store Procedures '
public DataTable GetProcedures()
{
string CacheKey = "Procedures";
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable tblProcedures = _Provider.GetProcedures();
DataTable tbl = new DataTable("Procedures");
tbl = tblProcedures.Clone();
if (tblProcedures.Rows.Count > 0)
{
string WhereClause = "ROUTINE_TYPE = 'PROCEDURE'";
foreach (DataRow tblRow in tblProcedures.Select(WhereClause))
{
tbl.ImportRow(tblRow);
}
}
Cache.Add(CacheKey, tbl);
return tbl;
}
public DataTable GetProcedureParameters(string procedureSchema, string procedureName)
{
string CacheKey = "ProcedureParameters:" + (string.IsNullOrEmpty(procedureSchema) ? procedureName : procedureSchema + "." + procedureName);
if (Cache.Keys.Contains(CacheKey))
return Cache[CacheKey];
DataTable tbl = _Provider.GetProcedureParameters(procedureSchema, procedureName);
Cache.Add(CacheKey, tbl);
return tbl;
}
#endregion
#endregion
#region ' Helpers '
private DbSchemaProvider GetSchemaProvider(string connectionString, string providerName)
{
DbSchemaProvider dbProvider;
switch (providerName.ToLower())
{
case "system.data.sqlclient":
dbProvider = new SqlServerSchemaProvider(connectionString, providerName);
break;
default:
throw new NotImplementedException("The provider '" + providerName + "' is not implemented!");
}
return dbProvider;
}
public string GetPropertyType(string SystemType)
{
return this.GetPropertyType(SystemType, false);
}
public string GetPropertyType(string SystemType, bool IsNullable)
{
return _Provider.GetPropertyType(SystemType, IsNullable);
}
public DbType GetDbColumnType(string providerDbType)
{
return _Provider.GetDbColumnType(providerDbType);
}
public string QualifiedTableName(string tableSchema, string tableName)
{
return _Provider.QualifiedTableName(tableSchema, tableName);
}
public string GetDatabaseName()
{
return _Provider.GetDatabaseName();
}
#endregion
}
// Data.Common.IDbSchemaProvider
interface IDbSchemaProvider
{
string GetDatabaseName();
DataTable GetSchemaTables();
DataTable GetTableColumns(string tableSchema, string tableName);
DataTable GetConstraints();
DataTable GetProcedures();
DataTable GetProcedureParameters(string procedureSchema, string procedureName);
DbType GetDbColumnType(string providerDbType);
string GetPropertyType(string SystemType);
string GetPropertyType(string SystemType, bool IsNullable);
string QualifiedTableName(string tableSchema, string tableName);
}
// Data.Common.DbSchemaProvider
abstract public class DbSchemaProvider : IDbSchemaProvider
{
private string _ConnectionString;
private string _ProviderName;
protected string ProviderName
{
get { return _ProviderName; }
}
public DbSchemaProvider(string connectionstring, string providername)
{
_ConnectionString = connectionstring;
_ProviderName = providername;
}
#region ' IDbProvider Members '
virtual public string GetDatabaseName()
{
string DatabaseName = string.Empty;
using (DbConnection _Connection = GetDBConnection())
{
DatabaseName = _Connection.Database;
}
return DatabaseName;
}
virtual public DataTable GetSchemaTables()
{
DataTable tbl = new DataTable("SchemaTables");
using (DbConnection _Connection = GetDBConnection())
{
tbl = _Connection.GetSchema("Tables");
}
return tbl;
}
virtual public DataTable GetTableColumns(string tableSchema, string tableName)
{
DataTable tbl = new DataTable();
using (DbConnection _Connection = GetDBConnection())
{
DbCommand _Command = _Connection.CreateCommand();
_Command.CommandText = string.Format("SELECT * FROM {0}", QualifiedTableName(tableSchema, tableName));
_Command.CommandType = CommandType.Text;
System.Console.WriteLine("SQL: " + _Command.CommandText);
tbl = _Command.ExecuteReader(CommandBehavior.KeyInfo).GetSchemaTable();
}
return tbl;
}
abstract public DataTable GetConstraints();
virtual public string QualifiedTableName(string tableSchema, string tableName)
{
if (!string.IsNullOrEmpty(tableSchema))
return string.Format("[{0}].[{1}]", tableSchema, tableName);
else
return string.Format("[{0}]", tableName);
}
virtual public DataTable GetProcedures()
{
DataTable tbl = new DataTable("Procedures");
using (DbConnection _Connection = GetDBConnection())
{
tbl = _Connection.GetSchema("Procedures");
}
return tbl;
}
virtual public DataTable GetProcedureParameters(string procedureSchema, string procedureName)
{
#region ' Decapated Code '
//DataTable tbl = new DataTable("ProcedureParameters");
//using (DbConnection _Connection = GetDBConnection())
//{
// string[] restrictions = new string[4] { null, procedureSchema, procedureName, null };
// tbl = _Connection.GetSchema("ProcedureParameters", restrictions);
//}
//return tbl;
#endregion
DataTable tbl = GetDTSchemaProcedureParameters();
using (DbConnection _Connection = GetDBConnection())
{
DbCommand _Command = _Connection.CreateCommand();
_Command.CommandText = this.QualifiedTableName(procedureSchema, procedureName);
_Command.CommandType = CommandType.StoredProcedure;
DbParameter par = _Command.CreateParameter();
DbProviderFactory pf = DbProviderFactories.GetFactory(this.ProviderName);
DbCommandBuilder cb = pf.CreateCommandBuilder();
MethodInfo theMethod = cb.GetType().GetMethod("DeriveParameters");
theMethod.Invoke(cb, new object[] { _Command });
int counter = 1;
foreach (DbParameter p in _Command.Parameters)
{
if (p.ParameterName != "@RETURN_VALUE")
{
DataRow parameterRow = tbl.NewRow();
if (!string.IsNullOrEmpty(procedureSchema))
parameterRow["SPECIFIC_SCHEMA"] = procedureSchema;
parameterRow["SPECIFIC_NAME"] = procedureName;
parameterRow["PARAMETER_NAME"] = p.ParameterName;
parameterRow["ORDINAL_POSITION"] = counter;
parameterRow["PARAMETER_MODE"] = p.Direction;
parameterRow["IS_RESULT"] = p.Direction == ParameterDirection.ReturnValue;
parameterRow["DATA_TYPE"] = p.DbType;
parameterRow["CHARACTER_MAXIMUM_LENGTH"] = p.Size;
tbl.Rows.Add(parameterRow);
counter++;
}
}
}
return tbl;
}
virtual public string GetPropertyType(string SystemType)
{
return GetPropertyType(SystemType, false);
}
virtual public string GetPropertyType(string SystemType, bool IsNullable)
{
string classType = string.Empty;
string[] systemType = SystemType.Split('.');
switch (systemType[1])
{
case "String":
classType = "string";
break;
case "SByte":
case "Boolean":
classType = IsNullable ? "bool?" : "bool";
break;
case "Byte":
classType = IsNullable ? "byte?" : "byte";
break;
case "Int16":
classType = IsNullable ? "short?" : "short";
break;
case "Int32":
classType = IsNullable ? "int?" : "int";
break;
case "Int64":
classType = IsNullable ? "long?" : "long";
break;
case "Decimal":
classType = IsNullable ? "decimal?" : "decimal";
break;
case "Double":
classType = IsNullable ? "double?" : "double";
break;
case "Single":
classType = (IsNullable ? "float?" : "float");
break;
case "DateTime":
classType = (IsNullable ? "DateTime?" : "DateTime");
break;
case "Guid":
case "Type":
classType = systemType[1];
break;
case "Byte[]":
classType = "byte[]";
break;
default:
//throw new NotImplementedException("Not implemented type :" + SystemType);
classType = SystemType;
break;
}
return classType;
}
abstract public DbType GetDbColumnType(string providerDbType);
#endregion
#region ' Helper functions '
internal DbConnection GetDBConnection()
{
DbProviderFactory providerFactory = DbProviderFactories.GetFactory(_ProviderName);
DbConnection _Connection = providerFactory.CreateConnection();
_Connection.ConnectionString = _ConnectionString;
_Connection.Open();
return _Connection;
}
protected DataTable GetDTSchemaTables()
{
DataTable tbl = new DataTable("SchemaTables");
tbl.Columns.Add("TABLE_CATALOG", typeof(System.String));
tbl.Columns.Add("TABLE_SCHEMA", typeof(System.String));
tbl.Columns.Add("TABLE_NAME", typeof(System.String));
tbl.Columns.Add("TABLE_TYPE", typeof(System.String));
tbl.Columns.Add("TABLE_GUID", typeof(System.Guid));
tbl.Columns.Add("DESCRIPTION", typeof(System.String));
tbl.Columns.Add("TABLE_PROPID", typeof(System.Int32));
tbl.Columns.Add("DATE_CREATED", typeof(System.DateTime));
tbl.Columns.Add("DATE_MODIFIED", typeof(System.DateTime));
return tbl;
}
protected DataTable GetDTSchemaConstrains()
{
DataTable tbl = new DataTable("Constraints");
tbl.Columns.Add("PK_TABLE_CATALOG", typeof(System.String));
tbl.Columns.Add("PK_TABLE_SCHEMA", typeof(System.String));
tbl.Columns.Add("PK_TABLE_NAME", typeof(System.String));
tbl.Columns.Add("PK_COLUMN_NAME", typeof(System.String));
tbl.Columns.Add("PK_ORDINAL_POSITION", typeof(System.String));
tbl.Columns.Add("PK_NAME", typeof(System.String));
tbl.Columns.Add("FK_TABLE_CATALOG", typeof(System.String));
tbl.Columns.Add("FK_TABLE_SCHEMA", typeof(System.String));
tbl.Columns.Add("FK_TABLE_NAME", typeof(System.String));
tbl.Columns.Add("FK_COLUMN_NAME", typeof(System.String));
tbl.Columns.Add("FK_ORDINAL_POSITION", typeof(System.Int32));
tbl.Columns.Add("FK_NAME", typeof(System.String));
return tbl;
}
protected DataTable GetDTSchemaProcedures()
{
DataTable tbl = new DataTable("Procedures");
tbl.Columns.Add(new DataColumn("SPECIFIC_CATALOG", typeof(string)));
tbl.Columns.Add(new DataColumn("SPECIFIC_SCHEMA", typeof(string)));
tbl.Columns.Add(new DataColumn("SPECIFIC_NAME", typeof(string)));
tbl.Columns.Add(new DataColumn("ROUTINE_CATALOG", typeof(string)));
tbl.Columns.Add(new DataColumn("ROUTINE_SCHEMA", typeof(string)));
tbl.Columns.Add(new DataColumn("ROUTINE_NAME", typeof(string)));
tbl.Columns.Add(new DataColumn("ROUTINE_TYPE", typeof(string)));
tbl.Columns.Add(new DataColumn("CREATED", typeof(DateTime)));
tbl.Columns.Add(new DataColumn("LAST_ALTERED", typeof(DateTime)));
return tbl;
}
protected DataTable GetDTSchemaProcedureParameters()
{
DataTable tbl = new DataTable("ProcedureParameters");
tbl.Columns.Add("SPECIFIC_CATALOG", typeof(System.String));
tbl.Columns.Add("SPECIFIC_SCHEMA", typeof(System.String));
tbl.Columns.Add("SPECIFIC_NAME", typeof(System.String));
tbl.Columns.Add("PARAMETER_NAME", typeof(System.String));
tbl.Columns.Add("ORDINAL_POSITION", typeof(System.Int32));
tbl.Columns.Add("PARAMETER_MODE", typeof(ParameterDirection));
tbl.Columns.Add("IS_RESULT", typeof(System.Boolean));
tbl.Columns.Add("DATA_TYPE", typeof(System.Data.DbType));
tbl.Columns.Add("CHARACTER_MAXIMUM_LENGTH", typeof(System.Int32));
tbl.Columns.Add("NUMERIC_PRECISION", typeof(System.Int16));
tbl.Columns.Add("NUMERIC_SCALE", typeof(System.Int32));
tbl.Columns.Add("DATETIME_PRECISION", typeof(System.Int16));
return tbl;
}
#endregion
}
// system.data.sqlclient